@article{bwmeta1.element.desklight-d939c9b4-5e22-424f-98a6-c6936726d8b5,
author = {J. Grochulski and T. Konik and M. Tkacz},
title = {On the tangency of sets in metric spaces},
journal = {Annales Polonici Mathematici},
volume = {37},
year = {1980},
pages = {121-131},
zbl = {0455.54022},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.desklight-d939c9b4-5e22-424f-98a6-c6936726d8b5}
}
J. Grochulski; T. Konik; M. Tkacz. On the tangency of sets in metric spaces. Annales Polonici Mathematici, Tome 37 (1980) pp. 121-131. http://gdmltest.u-ga.fr/item/bwmeta1.element.desklight-d939c9b4-5e22-424f-98a6-c6936726d8b5/